mochhi screams!
or
mochhi screams into (username)'s ears!
If so, then I think this suggestion is great but it'll probably be very low on the developers list as they have a lot of things to work on right now that are more of a priority than this.
I think this a cute emote to add and can perhaps reduce some caps in chat. Players may refer using to the emote instead of saying "I'm SCREAMING" or such as that. I see nothing wrong with adding this emote, a +1 from me!
This sounds rather good to me, and could help avoid situations similar to what has been said above.
I believe sometimes- it can be the simple, littler things, that can make things a bit more enjoyable. +1.
I think if /scream would be ‘(username)’s screams echo across the server’ and /scream (username) would be ‘(username) screams into the ear of (username)’ would be really great! I really like this suggestion! +1